CC: Support fractional iteration count on compositor animations

content/renderer/compositor_bindings/web_animation_impl.cc

Index: content/renderer/compositor_bindings/web_animation_impl.cc
diff --git a/content/renderer/compositor_bindings/web_animation_impl.cc b/content/renderer/compositor_bindings/web_animation_impl.cc
index 6cec7ae034a315439fedaa9c3819fd179f76b106..7291570f9467abd46ee474376171d171b84d934d 100644
--- a/content/renderer/compositor_bindings/web_animation_impl.cc
+++ b/content/renderer/compositor_bindings/web_animation_impl.cc
@@ -77,7 +77,15 @@ blink::WebAnimation::TargetProperty WebAnimationImpl::targetProperty() const {
   return static_cast<WebAnimationImpl::TargetProperty>(
       animation_->target_property());
 }
+#if WEB_ANIMATION_SUPPORTS_FRACTIONAL_ITERATIONS
+double WebAnimationImpl::iterations() const {
+  return animation_->iterations();
+}
 
+void WebAnimationImpl::setIterations(double n) {
+  animation_->set_iterations(n);
+}
+#else
 int WebAnimationImpl::iterations() const {
   return animation_->iterations();
 }
@@ -85,7 +93,7 @@ int WebAnimationImpl::iterations() const {
 void WebAnimationImpl::setIterations(int n) {
   animation_->set_iterations(n);
 }
-
+#endif
 double WebAnimationImpl::startTime() const {
   return (animation_->start_time() - base::TimeTicks()).InSecondsF();
 }